This blog post is the second part about relational databases. The first part with the casus and the first three questions can be found in: "Relational databases - ER diagram part 1". The remaining questions in this post are: 4. How many people are single parents? 5. How many households…

Between app is an app used by two people (e.g. a couple). A person signs up and connects with another person. From this point on the app can be used. Between is used for communication with each other, for sharing media, special days and events. Personally I use this app within…

If you have been wondering what happens in a software company; who communicates to who and about what, then this blog article might be of interest for you. It shows a simple overview of the communication processes between several players in a middle sized software company (around few hundred employees). It does…